Log bunk



Oct. 11 1927. w G. WHITE LOG BUNK Filed Maron 31. 1925 2 Sheets-Sheet l H HmiumH fko: ne 111,5

2 Sheets-Sheet 2 Oct. 11,1927.

w. G'. WHITE LOG BUNK Filed Marchsl. 1925 EN .mrmU

[H hl gvwenloz,

55% P l l i lmwmbs' Patented Get. 11, 1927.

narran STATES PATENT OFFICE.'

WILLIAM G. WHITE, VESTA, WASHINGTON.

Los BUNK.

Application led March mode of assembling and operating the parts' thereof, and accessibility of said parts for the purpose of renewal and repairs are improved.

Besides those features, by way of improvement of my former device, my present invention also comprehends certain new departures in log bunk construction and operative mechanism for log bunks which have utility and applicability in the art independf ently of my former invention..

IV hat constitutes my prese-nt invention will be hereinafter described in detail and succinctly defined in the appended claims.

In the accompanying drawings,

Figure I is a side elevation, partly broken away, with one chock raised and the other depressed, of my present invention in one form of embodiment complete.

K Figure II is a bottom plan view of the subject matter of Figure I, showing the relations of parts in their respective log-supporting positions.

Figure III is a view similar to Figure II but illustrating the parts shown therein in their log-releasing positions.

Figure IV is an end elevation of Figure I looking from right to left.

Figure V is an end elevation 'of Figure I h depressed instead of raised.

Figure VI is a top plan view of my bunk having operating mechanism slight-ly modi-` lied from that shown in the preceding figures.

Figure VII is a side elevation as in Figure lookin@` from left to right, but with the chock I of the subject matter of Figure VI'showing at the left one chock in theelevated or logholding position, and at the right the other chock in the depressed or log-releasing position` Figure VIII is a bottom plan view of the` 31, 1925. Serial No. 19,668.

my bunk frame, showing the empty halfbearings for the respective journals of a chock and chock supporter eXposedby removal of the detachable bearing plate which, in use, holds the journalsin place.

Figurey XI is an inside elevationofone of Y the detachable bearing plates, detached.`

Figure XII is a vertical cross-section of the bunkframe in preferred form of construction.

Referring to the numerals on the 'draw-y ings, 1 indicates a bunk frame Whichvis distinctively new and applicable tovarious different types 'of bunks. It extends from end of each bunk and includes ahollow arch 2,V which extends from one chock to the other, and which is ysupported at intervals with over-arched ribs 3. The said construction is preferred for the purpose of strengthening the structure of the arch 2 which is surmounted by a longitudinally disposed spine l. At the opposite ends of the arch 2, I provide boxes, between the side plates and 6 Y whereof iit snugly but loosely, chocks' and chock-supporters 8. Each'v chock consists, preferably, of an elongated plate providedV at one end with a journal 10 whose ends eX- tend upon opposite sides of the plate as a means for movably supporting the chocks in bearings in the side-plates 5 and 6 ofthe frame 1;

On its lower side, each chock-plate as above described is provided with a leg 11 which is preferably united to the'said plate in an acute angle. The top of each chock-l plate is preferably provided with a projec-f tion 12 which is disposed in alignment with the spine 4 so as to constitute, in effect a terminal extension thereof whenever the chock is elevated, as shown for instance in Figures I and VII.V i

Each chock-supporter 8 preferably likeA the chock consists of a` supporting plate and its journals 15, extending ytherefrom on opposite sides. The platespof each pair of checks and of the chock-supporters, when in assemblage, extend from their respective journals in opposite directions, as clearly i1- lustrated, for example` in Figure VII, so that when the plate of the supporter 8 is held in horizontal position, shown at the left of said figure, as by means hereinafter described, it, in turn, through its engagenient With the leg 1l, maintains the chock 7 in the log-supporting position'.

The journals 10 and l5, respectively, are carried'at each end of the bunk frame in cylindrical bearings 1 7 vand 18 formed in side `plateg on one side of the bunk frame, and on the other side'thereot inhalt-bearings 19 and in the plate 6 opposite to said plate, 5, so that either of said journals and parts appurtenant to it may be easily displaced and replaced' simply by manipulation Whenever occasionn may require.

"Eachside plate 6 iA` completed by a detachable bearinglplate 23 (Figure Xl), which is pr(j vided` vWith cylindrical bearings 25k andV 25 that register, respectively, with the half bearingslhfand20fiii it, and which are also aligned `ivith thebearinfgs l? andl in the cnmp'anion sidefplate Whenever the bearingplate @Sie properly positioned on its side, plate 6.' A shelit` rib 25 on the outside of theplate G attords a seat ttor positioning thereuponftlie bearing plate Q3, Which when; inplacesecured`-toitsside plate G, as by means lof screvv bo LsAQG. inwardly entendbearings l y Wise -jlhey tion of supporting and tripping mechanism example'. 'Suchifmechanisni comprises esseningbearing cap lugs and28on the respec-V p tive,plates23titinto recesses 30and 3l prof.

'vided for their reception, respectively, in

side,plates, (i. When arbearing. plate 23 is, secured t-o 'tlie side plate 6, substantially as just specified, it `serves to fasten the journalsland 1 5` in place,1 and, byv means of the 27 anrd 28,to'eltect a retentve .cover-` in'g' for thai-n,` protecting Jthem `where ,otherviouldfbe exposed lin the bali'- @lend f i y `Eacllrpf thejournalslepreferably extends beyonc `the outside acepf itsbearing,l inembers in M squared oij tlatted Vterminal'` 32, providedtor thepreception oit a asby a Cotter key 35 inserted into registering apertures provided 'tor it in .said terminal and fcollar, respectively "Tliefcollar 33 is` provided lwithl an outwardly extended Varm- 36, v`vvhereby, thejournal 15g-may be rocked byhand, lflor raising and loweringtheplate, constitutingthe. l chock-supporter 8 upon its' journals, a's (it/tengas may be desired.

.Next, in the order adopt-ed, comes'descripfor'operating; the checks 7, 4

that4 regard, a broader ,feature ot: my

invention 4consists "in the shape ot `the trame 1,*ivhereby provision may be'inadeifor encasing entirely ivithin said ramethe mechj' anism for operating the log-supporting meinbers off the bunkQnainely, `the checks 7 tor` tially any suitablevineans availablefat the will of the operatogjtor :maintaining the members 8 inV chockssupportlng position or for trippingv them, one at a time, so as to release, according to selection, one ot the checks 7.

In the form of such mechanism by me at present preferred for various reasons, but mainly for its effective simplicity, as Well as for the accessibility and adjustability ot' its parts, I employ a rolling carrier 37 on an axle that is supported at its opposite ends preferably by heavy rollers 39 which travel withfloosely snug lit in ways'provided for their accommodation inthe opposing inner laces of the'slil'e pieces 5 and 6 of the traine l. Said Ways may bedetined below by supporting tracks t() and above overhanging tra'clis el (Figure VH) and yare preferably entirely` unobstructed at either end` lso` as toperinit introduction. of the '38- at'y either endet' the iv'ay, and tope'rinit its passagef'entirely therethrough, it'A occa-A sion should on any account demand;

A coupling 42' biturcatedl at its outer end Wheeled axle elland' preferably provided at its innerend with an open ended box connection ,44, isV provided in itsbit'urcat'ed end vvith suitable, apertures tor reception, in operative accommodation, 'of the axle L38,

,'lfo the bor; connection 'ellis dejtachably `iastened at one (end, as by a bolt 45, a connect-l ing'iod 46, Whose,oppositeend is 'tor 47 o'talliiiurcated conlj'iecting Vpiece vThe `bifurcation of the piece i9 straddles thel is pivoted 'upon a stud bolt-l 52 Vwhich projects upwardly Vfrom oneoa series of cross-bars o by which, `at proper intervals, the base i Y ii i ot the arch 2 is spanned, and vvliich are pret-j era'bly madel lflush with the bottoni ot base flanges 55 that are preferably provided Ion the oppositesides oft' thear'ch.- To render pury poses of adjustment ,threaded intohthle ,stein eachstud bolt 52 easily accessible to a Wrenchx y introduced from the outside, `lfpreter tofpro- Q vide aniaperture. tljirouglifthe Wallet the L to the tivo arch 2' in operative proximity stud bolts, respectively.-

` Between the pivot `members .5l and; 52, and at apoint VVsubstantiallyV equidistant 'from each, isprovided a, lever-arm 5'?, disposed say at right anglesto theV cross headO, and extending therefrom, in -('ipposite directions,

vtowards the respectiveendscf the trame 1.

rlhe tree end 58 ofthe lever-arm 57 which is preti-nnblv slightly ,',lelectedintoi subs-tan? tially Vparallel vrelationship tothe longitudi nal axis, Lofthe extends across the top oi' a terminal one of the tour cross-bars 53,'

which ispreterably notched as indicated at 59 to receive andi-hold it. In operative relavrtionship to` the notch provide a keeper `for effectively lockingthe end 58 of the leverfajrmin the notch, and preventing' its unintended release therefrom. rIhe keeper CII may be one of any of suitable kinds, of which two are illustrated. One is a lever pivoted as indicated at 60 to the cross bar last named. Said lever is provided at one end with a countenweight 6l, and at the opposite end with a latch-notch 62.

The other torni of keeper shown is a curved latch 63 pivoted to the appropriate side plate (S as indicated at The tree end of the latch 63 serves by its weightto conine therein the end 58 ot lever-arin 57.

In Figures VI to IX, inclusive, I illusirate a modiiied form of mechanism for actuating the respective axles 38. In those f iigures the preferred details ot' construction of the rod 46 and its connections are omitted, and the rod, designated therein by a distinctive reference numeral 65, is

shown as integral with a connecting piece 66, corresponding to connecting piece 49.

@ne end of the rod 65 is pivotally united, as indicated at 68 to one arni 69 ot a bellcrank lever which is pivoted at its elbow 710 to a suitable support located on the outside of the frame l, so as to present conveniently to the hand of an operator the other leverarm 71 as a handle for manipulation.

A keeper 72 is provided on the 'frame l in operative proximity to the tree end of the lever-arm 7l, with substantially the samey eiiect as that described in reference to the latch 63, although by a slightly dierent method of operation which will be obvious from the drawing alone without further description.

Brietl description of the operation of my device is, in view ot' the foregoing, deemed to be all that is necessary. For setting up Y the chocks 7 from the depressed position, in which they lie substantially flush with the top of their adjacent sid-plates 5 and 6, manipulation oi; the chocks and of the chocklsupporteis 8 through the lever 36 on the collar is necessary in order to bring the plate of the member 8 to a substantially horizontal supporting position under the leg 1l of the chock.

Then, by moving one of the axles 38 towards the outer end of the frame l that is nearer the said axle, support- Jfor one ot the chocks is obtained, and, by locking the end 58 of the proper lever-arm in place, the said chock is set up and in so far made ready for loading logs upon the bunk. HWhen both chocks of each bunk are set up, the bunk is ready to receive its load.

For the purpose oit' unloading, the operator stands at the end of the bunk remote trom its discharge end, and after unlocking the lever end 58 from that end of the bunk at which he stands,` he withdraws the axle 38 from underneath the plate of the chocksupporter-8 at the remote or discharge end of the bunk. He is thereby enabled to release the bunk load easily, and without endangering himself in respect to lite or limb.

What I claim is:

1. In a log bunk, the combination within an oblong hollow frame, of a pair of terminally disposed pivoted chocks hung horizontally therein, and each extending in one direction from its pivotal support, said trame being transversely arched between the chocks, chock supporters also pivoted in the trame and extending oppositely into operative connection with the chocks respectively, and means operatively mounted on the opposite inner walls ot' the frame for actuating at will either chock supporter. A

2. In a log bunk, the combination within an oblong hollow frame, otra pivoted chock,

hung horizontally therein,` and, extending in one direction from its pivotal support, a

chock supporter also pivoted in the frameand extending oppositely into operative connection with the chock, and means operatively mounted on the opposite inner walls of the iframe for actuating at will the chock supporter, said means comprising a rolling carrier slidably supported by the trame below and in operative relationship to the chock supporter.

3. In a logY bunk, the combination within an oblong hollow frame, of a pivoted chock hung horizontally therein, and, extending in one direction from its pivotal support, a chock supporter also pivoted in the frame and extending oppositely into operative connection with the chock, and means for actuating at will the chock supporter, said means comprising a rolling carrier slidably supported by the trame below and in operative relationship to the chock supporter, said rolling carrier working on an axle whose opposite ends travel in ways defined in the opposite inner sides of the iframe.

4. In a log bunk, the combination within an oblong hollow frame, of a pivoted chock hung horizontally therein, and, extending in one direction from its pivotal support, a chock supporter also pivoted in the frame and extending oppositely into operative connection with the chock, .and means for actuating at will the chock supporter, said means comprising a rolling carrier slidably supported by the traine below and inoperative relationship to the chock'supporter, said rolling carrier working on an axle whose opposite ends travel in terminally unobstructed ways defined in opposite sides of the frame.

5. In a log bunk, the combination withinr an oblong hollow trame, ot a pivoted chock provided, intermediate ot" its extremities, with a pendant iixed leg and being hung horizontally therein and extending in one direction 'troni its pivotal support, a chock supporter also pivoted in the frame and exica ' said crown. l

frame for actuating at will the ychecks-upporter. A Y

V6.V As apart of a log bunk, a transversely arched hollow'bnnk rame provi-ded Witha longitudinally disposedspine in. thecrown ot' the arch protruding above and beneath 7, 'il-rs a part of a logl bunk, a transversely arched oblong hollow bnnk'l'ranie provided 'with a longitudinally ldislwsed 'spine protrading above and beneath Vthe crown of the arch of said' trame, and transverse ribs formedoir the inner Walls of the traine oining and supporting saidspine.'V n

8'. In a logbunk, vthe combination with an oblong hollow Vtrame, of a:ipvotedchock innighorizontally therein, and, extending` in onednection- Vtroni its pivotal support, a chock snpporteralso pivoted in the frame and extending oppositely into operative con-` nection With'the chock, means at oppositev ends" of the frame for actuating the chock supporters, respectively, located at the endA of the frame remote from said means, and

additional meansdsposed adjacenty to the chock supporters, for actuating them, respectvely.- f

9. ln a log bunk, the combination with the end of its frame, of opposite iframe' side-v plates provided, respectively, with bearings for Vpivotal support of a pivoted chock, one ot said bearings being open, andan aper turedl bearing plate secnrable to the s'deof the side`-plate which lhas* the open bearing,

said bearings, one of said adjacent lrea'iiigs"V being open, and an apertured bearing-platee securable to the .side lof the side-plate Which has the onen adjacent bearngs,for completing, in eect, said open bearings.

ln testimony whereof, I `have hereunto set inv hand. i y VILLIAM G. WHITE. 

